5 signs your air filter needs to be replaced. 😷 1. Dust and Dirt Around Vents. 2. The Filter Looks Dirty or Clogged. 3. Rise in Electricity Bill. 4. It Takes Longer to Heat or Cool Your Home. 5. The AC Unit Is Hot.
If you don't change your air filter, it can quickly become clogged with dust and debris, preventing proper air filtration. This leads to a variety of issues for your HVAC system including system inefficiency, higher energy bills, inadequate air quality, and ultimately failure.
How Often Do I Need to Change Out My Air Filter? Generally, most air filter manufacturers and HVAC companies recommend changing your air filter every 90 days, or 3 months. That can change based on where your home is located (ex. dusty, dry climates), if you have any pets, and the age of your system and equipment.
A new, clean new air filter keeps your HVAC unit running smoother and running longer, extending its useful life.
First, check your filters and coils for dirt and debris that may be impeding airflow. Once you've cleaned the filters and coils, run the air conditioner with just the fan so that the ice accumulation can melt off. If the AC still doesn't blow cold air, it could be that refrigerant levels are too low.
Poor Air Quality
If the filter is too dirty to do its job, those unwanted particles can collect in your ductwork and cling to the internal components of your HVAC system, ultimately diminishing air quality throughout your house.
A dirty air filter can cause your vehicle to throw a Check Engine code. During this instance, the Check Engine Light of your vehicle will turn on. The light turns on because your vehicle is sensing that its engine isn't receiving enough air.
Many disposable air conditioner filters should be replaced rather than cleaned, as cleaning with water can lead to possible mold issues. Clean the coils and fan of the AC regularly, using a canister of condensed air to blow away dust and buildup.
Is my AC not working because of the filter? Potentially, yes. While there are a whole host of issues that could cause problems with your air conditioning system, a dirty air filter should be the first thing to check if your central air conditioning unit isn't working as properly as it should.
Turn the unit off. Turning this off prevents the air from blowing dust and grit into your system. Open up your vent and remove the used filter.
Unkempt air filters may negatively affect indoor air quality by spreading pet dander, dust, and other allergens throughout your home. This may lead to irritated eyes, nose, and potentially breathing problems.
As a result of the buildup, a dirty filter will also cause poor cold airflow in your air conditioning system. That cold air will be trapped inside your air conditioner, causing ice to form on its coils. Once that happens, your air conditioner will freeze up and become inoperable.
Dirty AC Filter Symptoms to Watch for With Your Furnace. You can usually tell a dirty HVAC filter needs to be changed just by looking at it. The filter will be gray or black and bits of debris will be visible.
The symptoms of a dirty air filter can include decreased fuel economy, weak performance, more engine strain, misfires, black smoke, and a check engine light. These can result in expensive damage to your engine and other parts.
There are a number of reasons why your air conditioner might be running but not cooling. It could be an issue with the thermostat, the compressor, or the evaporator coils. Or, it could simply be clogged with dust and debris, which is preventing it from working properly.
After replacing the filter, you should wait at least 12 hours before running the system. If the AC is still not blowing cold air, it could signify that you have a refrigerant leak, a damaged condenser, or your entire mechanical system needs maintenance.
To clean the coils, spray the fins on the inside of the unit with an A/C coil cleaner, following the manufacturer's instructions. To remove the cleaning detergent, spray with a hose to push the cleaner through the fins to the outside of the unit. Don't use a pressure washer — the force of the water can damage the fins.